Power supply device for electronic cigarette



FIG. 1 is a first perspective view of a power supply device for an electronic cigarette of the design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is an enlarged top plan view thereof; and,

FIG. 8 is an enlarged bottom plan view thereof.

The broken lines in the drawings depict portions of the power supply device for electronic cigarette that form no part of the claimed design. 

CLAIM The ornamental design for a power supply device for an electronic cigarette, as shown and described. 